KB:- http://support.apple.com/kb/HT5730

10.8.4 Combo Update: http://support.apple.com/kb/DL1659
10.8.4 Update: http://support.apple.com/kb/DL1658

Regards,
Karthikeyan M

So much for a Time Machine "Unable to create backup folder" fix...

I can confirm that 10.8.4 should resolve the bug where 802.1x login window profiles fail when authenticating to Active Directory domains with NetBIOS names that do not match the domain. Big win for those of us with non-standard infrastructure configs.